C5R Oil Starvation?

[marco383]

I was up at Road Atlanta this afternoon talking to a Corvette racer, and he mentioned that a friend had lunched his C5R block-based race engine due to oil starvation under hard cornering. Supposedly, this was caused by the larger oil passages in the C5R block. The conventional wisdom in his crowd was that C5R-based engines should be dry-sumped. I only do track days with my car, so is this something I should worry about? I'd hate to lose a big buck engine.

[Arnoldir]

I was advised to add an accusump (3 quart) on my stock LS-6, and think it's cheap insurance for any car doing sustained lateral g's.

The guys at Phoenix Perf mounted it in the left inner fenderwell just ahead of the door, and a stand alone oil cooler up front.

Same setup that Dave P. and Subdriver have on their T1 cars.

[Mufflerbearing]

I think running it one quart above the full mark for occassional D.E. days should be adequate.

More serious racing might call for something more.

Pat

[speedpup]

Big dollar motor definately get a Accusump. They work great! DRM sells a kit.

[DJWorm]

It would be interesting to know what type of pan was used on that C5R block.

Actually the improvements to the LS6 block and the C5R block over the LS1 block lessen the chance of oil starvation.

A tracked car at the very least should have an Accusump, Ported oil Pump and have a cooler.

A dry sump is best. I like the Billet, 4 pick-up pan from KaTech the best.
KaTech as well as ARE has 2 pick-up dry sump pans. I like Peterson parts for the rest of the system.

[marco383]

Based on the advice above, I'll be installing an Accusump. Given my observed oil temps to date (max. around 275), I think I'm OK without a cooler. For what it's worth, the C5R block just uses the stock LS1 oil pan.

Thanks for the input!

[Arnoldir]

Marco,

My routine with the Accusump is to shut down the valve before shutting off the engine, then turn on sump and count to 10 before starting.

For normal street, I shut the valve back down as I pull away and leave it off. If I get stuck in traffic, or before parking it I will open the valve at idle and bleed some cold oil back into the motor. If you watch the oil temp you will see a 5-7 degree drop. as soon as the temp starts to rise again I close the valve.

[DJWorm]

It's advisable to install an engine oil cooler at the same time as the Acusump as it is all the same dircuit.

Was that OEM pan the 4 level Corvette pan with wiing reservoirs or the open Camaro pan?

[marco383]

It's the Corvette pan. BTW, I checked Rippie's website and can't find a reference to the Accusump kit. I'll call them on Monday.

[PGHZO6]

Can someone give me a link to DRM??

[dmtnt]

I'm in the process of gathering up a parts list to piece together my own Accusump kit (3 qt w/ electric valve). I plan on using a T-fitting to plumb it into my existing LG oil cooler/radiator. Will post pics once I get it done - hopefully in the next few weeks.

[DJWorm]

www.dougrippie.com

[MikesZ06]

Originally Posted by DJWorm

www.dougrippie.com

Well, that's one way to do it....